Re: [AMBER] pmemd with mpi number of cpus

From: case <>
Date: Wed, 15 Dec 2010 09:22:11 -0500

On Wed, Dec 15, 2010, Stefano Pieraccini wrote:
> I have until now used the parallel version of pmemd employng a number of
> processor that was a power of two (In the older version of sander there was
> this restrictions and I went on like this). Now I'm using a cluster with 12
> cpus on each node, and it would be useful for me to use a number of
> processors multiple of 12. Is the restriction of the power of 2 still valid,
> or anyway does it still assures better performance, or can I safely use an
> arbitrary number of cpu?

pmemd (CPU version) has no power-of-two limitations, and I have used it quite
successfully on 12 cores.


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Received on Wed Dec 15 2010 - 06:30:05 PST
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